An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The electronic device of claim 1, wherein the light emitting element comprises an organic light emitting diode.
3. The electronic device of claim 1, wherein one clock cycle time of the emission on-off clock is not changed when the frame rate of the image frame and the frame rate of the panel driving frame are changed.
4. The electronic device of claim 3, wherein the frame rate of the image frame is changed to control a time of the image frame to be equal to or longer than the one clock cycle time of the emission on-off clock.
5. The electronic device of claim 4, wherein the frame rate of the image frame is changed to control the time of the image frame to be an integer multiple of the one clock cycle time of the emission on-off clock.
7. The electronic device of claim 6, wherein the frame rate of the panel driving frame is changed to be equal to the frame rate of the image frame.
8. The electronic device of claim 1, wherein the source device is configured to change the frame rate of the image frame according to characteristics of images that are displayed by the displaying operation.
9. The electronic device of claim 8, wherein the source device is configured to increase the frame rate of the image frame when a change of the images is faster than a reference speed.
10. The electronic device of claim 8, wherein the source device is configured to decrease the frame rate of the image frame when a change of the images is slower than a reference speed.
12. The electronic device of claim 11, wherein the light emitting element comprises an organic light emitting diode.
13. The electronic device of claim 11, wherein the frame rate of the image frame is changed by selecting one from among a plurality of candidate frame rates of the image frame that are calculated by the [Equation 1] as the frame rate of the image frame.
14. The electronic device of claim 11, wherein the one clock cycle time of the emission on-off clock is not changed when the frame rate of the image frame and the frame rate of the panel driving frame are changed.
15. The electronic device of claim 14, wherein an emission duty ratio of the panel driving frame is not changed even when the frame rate of the panel driving frame is changed.
17. The electronic device of claim 16, wherein the frame rate of the panel driving frame is changed to be equal to the frame rate of the image frame.
18. The electronic device of claim 11, wherein the source device is configured to change the frame rate of the image frame according to characteristics of images that are displayed by the displaying operation.
19. The electronic device of claim 18, wherein the source device is configured to increase the frame rate of the image frame when a change of the images is faster than a reference speed.
20. The electronic device of claim 18, wherein the source device is configured to decrease the frame rate of the image frame when a change of the images is slower than a reference speed.
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August 8, 2023
November 5, 2024
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